ES2247752T3 - FORMWORK LOST FOR Slabs. - Google Patents

FORMWORK LOST FOR Slabs.

Info

Publication number
ES2247752T3
ES2247752T3 ES99118277T ES99118277T ES2247752T3 ES 2247752 T3 ES2247752 T3 ES 2247752T3 ES 99118277 T ES99118277 T ES 99118277T ES 99118277 T ES99118277 T ES 99118277T ES 2247752 T3 ES2247752 T3 ES 2247752T3
Authority
ES
Spain
Prior art keywords
formwork
block
lost
shaped seat
expendable
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
ES99118277T
Other languages
Spanish (es)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Application granted granted Critical
Publication of ES2247752T3 publication Critical patent/ES2247752T3/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B5/00—Floors; Floor construction with regard to insulation; Connections specially adapted therefor
    • E04B5/16—Load-carrying floor structures wholly or partly cast or similarly formed in situ
    • E04B5/32—Floor structures wholly cast in situ with or without form units or reinforcements
    • E04B5/36—Floor structures wholly cast in situ with or without form units or reinforcements with form units as part of the floor
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B5/00—Floors; Floor construction with regard to insulation; Connections specially adapted therefor
    • E04B5/02—Load-carrying floor structures formed substantially of prefabricated units
    • E04B5/026—Load-carrying floor structures formed substantially of prefabricated units with beams or slabs of plastic
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B5/00—Floors; Floor construction with regard to insulation; Connections specially adapted therefor
    • E04B5/02—Load-carrying floor structures formed substantially of prefabricated units
    • E04B5/04—Load-carrying floor structures formed substantially of prefabricated units with beams or slabs of concrete or other stone-like material, e.g. asbestos cement
    • E04B5/043—Load-carrying floor structures formed substantially of prefabricated units with beams or slabs of concrete or other stone-like material, e.g. asbestos cement having elongated hollow cores
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B5/00—Floors; Floor construction with regard to insulation; Connections specially adapted therefor
    • E04B5/16—Load-carrying floor structures wholly or partly cast or similarly formed in situ
    • E04B5/17—Floor structures partly formed in situ
    • E04B5/23—Floor structures partly formed in situ with stiffening ribs or other beam-like formations wholly or partly prefabricated

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Forms Removed On Construction Sites Or Auxiliary Members Thereof (AREA)
  • Surgical Instruments (AREA)
  • Moulds, Cores, Or Mandrels (AREA)
  • Macromonomer-Based Addition Polymer (AREA)
  • Polyesters Or Polycarbonates (AREA)

Abstract

The invention is a new expendable form made of foamed material for concrete floors with a generically rectangular section and provided, in the upper part, with a V-shaped seat and, on the two sides with complementary projections and flutes; said expendable form conglomerates, in the foamed material, two or more reticulated triangular rods made of iron. Said expendable for can be provided with lightening holes. As an alternative to the V-shaped seat, the new expendable form can be provided with a generically rectangular section with some lateral chamfers so that a V-shaped notch can be obtained positioning two expendable forms side by side. When the new expendable forms are positioned directly on the lateral abutments of the floor they immediately made up the ribs on which the falsework of the beams is inserted. <IMAGE>

Description

Encofrado perdido para losas.Lost formwork for slabs.

La presente invención se refiere a un encofrado perdido para losas de hormigón, tal como se expone en el preámbulo de las reivindicaciones 1 y 2.The present invention relates to a formwork lost for concrete slabs, as set out in the preamble of claims 1 and 2.

El documento US-A 4 157 640 da a conocer encofrados en los que se inserta completamente en su interior el armazón de refuerzo, dentro del bloque exclusivamente en las áreas de los medio asientos en forma de V, de manera que la cara superior de cada elemento de refuerzo que forma el armazón, el cual trabaja por compresión y se encuentra insertado en el interior de una losa de hormigón moldeada en el suelo, se encuentra separado del material aislante. En este último caso, la estructura no se utiliza como sistema de refuerzo para el encofrado perdido per se, sino que se utiliza para conectarse e insertarse en el hormigón 

\hbox{del suelo.}
Document US-A 4 157 640 discloses formwork in which the reinforcement frame is completely inserted inside the block exclusively in the areas of the half V-shaped seats, so that the upper face of each reinforcing element that forms the frame, which works by compression and is inserted inside a concrete slab molded into the ground, is separated from the insulating material. In the latter case, the structure is not used as a reinforcement system for the formwork lost per se , but is used to connect and insert into the concrete 
 \ hbox {from the ground.}

El documento EP A-0 459 924 da a conocer paneles o encofrados perdidos que consisten en material plástico espumoso, habitualmente poliestireno, que presentan una forma genérica de paralelepípedo rectangular provista de medio asientos o nervaduras laterales, colocándose dichos encofrados en un armazón temporal de soporte para el moldeo de las losas. El hormigón descansa sobre dichos encofrados perdidos y sobre la estructura constituida por las vigas, las cuales forman de esta manera losas de hormigón nerviadas. Los encofrados perdidos resultan muy útiles debido a que sustituyen a los clásicos ladrillos huecos para suelos aunque, por otra parte, resulta necesario instalar un complejo armazón de soporte temporal para la estructura de vigas y para los 

\hbox{encofrados
perdidos.}
EP A-0 459 924 discloses missing panels or formwork consisting of foamy plastic material, usually polystyrene, having a generic rectangular parallelepiped shape provided with half seats or side ribs, said formwork being placed in a temporary support frame for the molding of the slabs. The concrete rests on said lost formwork and on the structure constituted by the beams, which thus form ribbed concrete slabs. Lost formwork is very useful because it replaces the classic hollow bricks for floors although, on the other hand, it is necessary to install a complex framework of temporary support for the structure of beams and for the 
 \ hbox {formwork
lost.}

El objeto de la presente invención es un nuevo panel o un encofrado perdido según se caracteriza en las reivindicaciones 1 y 2. Se proporciona con una cimbra conglomerada metálica con el fin de que se autosoporte durante el transporte y la etapa de moldeo.The object of the present invention is a new panel or formwork lost as characterized in the claims 1 and 2. Provided with a conglomerate formwork metal in order to be self-supporting during transport and the molding stage

El encofrado perdido es de planta rectangular con anchura modular (por ejemplo de 60 cm) o una planta diferente que corresponde a la distancia entre los centros de la cimbra principal de la losa, dicha planta tiene de tres a cinco metros de longitud en conexión con el vano.The lost formwork is rectangular in shape with modular width (for example 60 cm) or a different floor that corresponds to the distance between the centers of the formwork main of the slab, said plant has three to five meters of length in connection with the opening.

A la sección vertical del encofrado perdido se le proporciona una forma particular esencialmente rectangular y, en una primera alternativa, con un asiento central en forma de V en la parte superior. La anchura y profundidad de dicho asiento resultan suficientes para albergar las cimbras de las vigas principales de las losas y realizar losas de hormigón nervia-
das.The vertical section of the lost formwork is provided with a particular essentially rectangular shape and, in a first alternative, with a V-shaped central seat at the top. The width and depth of said seat are sufficient to house the slabs of the main beams of the slabs and make ribbed concrete slabs.
you give.

Los dos lados de la sección del nuevo encofrado perdido presentan algunas partes en forma de saliente o de ranura, de esta manera resulta posible posicionar los encofrados perdidos lado a lado mediante la inserción del lado sobresaliente de un encofrado perdido en la ranura del encofrado contiguo.The two sides of the new formwork section lost have some protruding or grooved parts, in this way it is possible to position the lost formwork side by side by inserting the protruding side of a formwork lost in the groove of the adjacent formwork.

Se conglomera una cimbra en el encofrado perdido y en la dirección de su longitud, dicha cimbra presta soporte al encofrado perdido y soporta el peso adicional del hormigón de moldeo de losa y vigas. Dicha cimbra conglomerada en el encofrado perdido consiste en una o más barras dispuestas en triángulo y con el vértice superior (o el inferior) unido por medio de barras de menor diámetro.A formwork conglomerate in the lost formwork and in the direction of its length, said form supports the lost formwork and supports the additional weight of concrete slab and beam molding. Said formwork conglomerate in the formwork lost consists of one or more bars arranged in triangle and with the upper (or lower) vertex joined by bars of smaller diameter

Dicha cimbra del encofrado perdido se encuentra completamente insertada dentro del material plástico del encofrado; también puede disponerse e insertarse en el material plástico un perfil o canal inferior. En esta segunda opción, resulta más fácil la colocación de un falso techo, de tablero de cartón-yeso, sobre el encofrado.Said formwork formwork is found completely inserted into the plastic formwork material; it can also be arranged and inserted into the plastic material a lower profile or channel. In this second option, it is easier the placement of a false ceiling, board plasterboard, on the formwork.

De hecho, dicho perfil constituye un asiento sólido para fijar los tornillos de ensamblaje de los paneles al falso techo.In fact, said profile constitutes a seat solid to fix the panel assembly screws to the False ceiling.

El encofrado perdido puede estar provisto de agujeros de aligeramiento alineados con la dimensión mayor de dicho encofrado. Dichos agujeros reducen el peso del encofrado, así como la cantidad de material plástico utilizada para preparar un encofrado.Lost formwork may be provided with lightening holes aligned with the largest dimension of said formwork These holes reduce the weight of the formwork, as well as the amount of plastic material used to prepare a formwork

Los nuevos encofrados perdidos realizados de esta manera muestran muchas ventajas, la primera de ellas, que cuando se colocan directamente sobre los salientes laterales de las losas, forman instantáneamente las nervaduras sobre las que se insertan las cimbras de las vigas.The new lost formwork made of this way show many advantages, the first one, that when placed directly on the lateral projections of the slabs, Instantly form the ribs on which they are inserted the beams of the beams.

Una ventaja adicional es que dicho encofrado se encuentra autosoportado. En el caso de que haya una distancia mayor entre los puntos de apoyo, puede insertarse un soporte temporal (soporte intermedio).An additional advantage is that said formwork is find self-supporting In case there is a greater distance between the support points, a temporary support can be inserted (intermediate support).

Otra ventaja importante es la capacidad de aislamiento del encofrado, tanto desde el punto de vista térmico como desde el punto de vista acústico, sin la presencia de conducciones térmicas.Another important advantage is the ability to formwork insulation, both thermally as from the acoustic point of view, without the presence of thermal conduits

El nuevo encofrado puede realizarse con una forma diferente; en lugar del asiento central en forma de V en el que se alberga la cimbra principal del suelo, una segunda alternativa proporciona dos medios asientos o nervaduras, de manera que los dos encofrados posicionados lado a lado puedan dar lugar a un asiento o a una nervadura completa entre ellos. En este caso, la sección del nuevo encofrado presenta una forma de trapezoide isósceles con nervaduras laterales sobre los márgenes de la base principal, de manera que los dos encofrados contiguos se encuentren apropiadamente espaciados.The new formwork can be made with a shape different; instead of the central V-shaped seat in which houses the main formwork of the ground, a second alternative provides two half seats or ribs, so that the two formwork positioned side by side can lead to a seat or to a full rib between them. In this case, the section of new formwork presents an isosceles trapezoid shape with lateral ribs on the margins of the main base, of so that the two contiguous formwork are properly located spaced out

La ilustración adjunta muestra, a título de ejemplo no limitativo, una forma de realización de la invención.The attached illustration shows, by way of non-limiting example, an embodiment of the invention.

La figura 1 muestra parcialmente una vista axonométrica del nuevo encofrado.Figure 1 partially shows a view axonometric of the new formwork.

Se muestra que la forma de la parte realizada en material plástico (1) presenta claramente una sección esencialmente rectangular y una sección superior central en forma de V (1.1), un saliente (1.2) en un lado y una ranura (1.3) en el otro lado.It shows that the shape of the part performed in plastic material (1) clearly presents a section essentially rectangular and a central upper section in the form of V (1.1), a projection (1.2) on one side and a groove (1.3) on the other side.

En la parte realizada en material espumoso (1) existen algunos agujeros de aligeramiento (1.4), mientras que dos cimbras (2) consistentes en barras metálicas atraviesan la longitud de dicha parte realizada en material plástico.In the part made of foamy material (1) there are some lightening holes (1.4), while two formwork (2) consisting of metal bars cross the length of said part made of plastic material.

Las figuras 2 y 3 muestran dos formas adicionales de preparar la parte realizada en plástico (1), en la que, en lugar del asiento central en forma de V, hay dos medios asientos (1.5), de manera que dos encofrados perdidos posicionados lado a lado pueden dar lugar a un asiento completo entre los dos. En estos casos, la sección de la parte realiza en material plástico presenta una forma de trapezoide isósceles con una nervadura lateral (1.6) en los márgenes de la base principal, de manera que los dos encofrados quedan apropiadamente espaciados.Figures 2 and 3 show two additional shapes to prepare the part made of plastic (1), in which, instead of the V-shaped center seat, there are two half seats (1.5), so that two lost formwork positioned side by side They can lead to a full seat between the two. In these cases, the section of the part performed in plastic material presents an isosceles trapezoid shape with a lateral rib (1.6) on the margins of the main base, so that the two formwork are properly spaced.

Particularmente la figura 3 muestra una versión del nuevo encofrado, en el que hay un perfil (3) que soporta el falso techo.Particularly Figure 3 shows a version of the new formwork, in which there is a profile (3) that supports the False ceiling.

[0022] Lo anteriormente expuesto constituye las líneas básicas de la invención, a partir de las cuales, un técnico podrá poner en práctica la invención; por lo tanto, cualquier cambio que pueda resultar necesario durante la puesta en práctica y que no se aparte del alcance definido por las reivindicaciones adjuntas debe considerarse como completamente protegido por la presente invención.[0022] The foregoing constitutes the basic lines of the invention, from which, a technician may practice the invention; therefore any change that may be necessary during implementation and that does not deviate from the scope defined by the claims attached must be considered as fully protected by the present invention

Claims (5)

1. Encofrado perdido para losas de hormigón, constituido por un bloque longitudinal (1) de material plástico expandido y de sección esencialmente rectangular, pro- visto en su cara superior de un asiento en forma de V (1.1), comprendiendo dicho bloque (1) una o más estructuras de refuerzo (2) de barras de hierro, caracterizado porque cada estructura de refuerzo (2) se encuentra constituida por tres barras que forman una sección triangular íntegramente insertada dentro del bloque (1) entre el asiento en forma de V (1.1) y un margen lateral del bloque, mientras que dicho asiento en forma de V (1.1) se encuentra libre para albergar la estructura de las vigas principales del suelo.1. Lost formwork for concrete slabs, consisting of a longitudinal block (1) of expanded plastic material and of essentially rectangular section, provided on its upper face with a V-shaped seat (1.1), said block (1) comprising ) one or more reinforcing structures (2) of iron bars, characterized in that each reinforcing structure (2) is constituted by three bars that form a triangular section fully inserted into the block (1) between the V-shaped seat (1.1) and a lateral margin of the block, while said V-shaped seat (1.1) is free to house the structure of the main floor beams. 2. Encofrado perdido para losas de hormigón, constituido por un bloque longitudinal (1) de material plástico expandido y de sección esencialmente rectangular, pro- visto en su cara superior de márgenes laterales inclinados (1.5), de manera que dos bloques longitudinales posicionados lado a lado forman un asiento en forma de V entre ellos, comprendiendo dicho bloque (1) una o más estructuras de refuerzo (2) de barras de hierro, caracterizado porque cada estructura de refuerzo (2) se encuentra constituida por tres barras que forman una sección triangular íntegramente insertada dentro del bloque (1) entre los márgenes laterales inclinados (1.5) del bloque, mientras que dicho asiento en forma de V se encuentra libre para albergar la estructura de las vigas principales del suelo.2. Lost formwork for concrete slabs, consisting of a longitudinal block (1) of expanded plastic material and essentially rectangular section, provided on its upper side with inclined lateral margins (1.5), so that two longitudinal blocks positioned side on the side they form a V-shaped seat between them, said block (1) comprising one or more reinforcing structures (2) of iron bars, characterized in that each reinforcing structure (2) is constituted by three bars that form a triangular section fully inserted into the block (1) between the inclined lateral margins (1.5) of the block, while said V-shaped seat is free to house the structure of the main floor beams. 3. Encofrado perdido según la reivindicación 1 ó 2, en el que los márgenes laterales de los bloques longitudinales (1) se encuentran provistos de salientes (1.2; 1.6) en un lado y de nervaduras o ranuras (1.3) en el otro lado.3. Lost formwork according to claim 1 or 2, in which the lateral margins of the longitudinal blocks (1) they are provided with projections (1.2; 1.6) on one side and ribs or grooves (1.3) on the other side. 4. Encofrado perdido según cualquiera de las reivindicaciones anteriores, en el que en el bloque (1) se encuentran formados agujeros de aligeramiento (1.4) entre los asientos en forma de V (1.1).4. Formwork lost according to any of the previous claims, wherein in block (1) lightening holes (1.4) are formed between V-shaped seats (1.1). 5. Encofrado perdido según cualquiera de las reivindicaciones anteriores, en el que uno o más perfiles (3) se encuentran completamente insertados en el bloque (1) para la fijación de un falso techo.5. Formwork lost according to any of the previous claims, wherein one or more profiles (3) are they are completely inserted in the block (1) for the fixing a false ceiling.
ES99118277T 1998-09-18 1999-09-15 FORMWORK LOST FOR Slabs. Expired - Lifetime ES2247752T3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITPD980220 1998-09-18
IT1998PD000220A IT1302499B1 (en) 1998-09-18 1998-09-18 DISPOSABLE FORMWORK FOR FLOORS

Publications (1)

Publication Number Publication Date
ES2247752T3 true ES2247752T3 (en) 2006-03-01

Family

ID=11392322

Family Applications (1)

Application Number Title Priority Date Filing Date
ES99118277T Expired - Lifetime ES2247752T3 (en) 1998-09-18 1999-09-15 FORMWORK LOST FOR Slabs.

Country Status (5)

Country Link
EP (1) EP0987377B1 (en)
AT (1) ATE301218T1 (en)
DE (1) DE69926454T2 (en)
ES (1) ES2247752T3 (en)
IT (1) IT1302499B1 (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100350113C (en) * 2003-10-21 2007-11-21 邱则有 Hollow form structural parts
US8997420B2 (en) * 2004-11-29 2015-04-07 Victor Amend Reinforced insulated forms for constructing concrete walls and floors
WO2006079355A1 (en) * 2005-01-28 2006-08-03 Domopan, S.P.A. Panel made from expanded plastic meterial for building slab construction, slab and construction method comprising such a panel
ME00560A (en) * 2005-11-15 2011-12-20 Possibility of special lightening insulating and reinforcing intermediate floor contractions
RS54106B1 (en) 2011-08-03 2015-10-30 Milan KEKANOVIĆ Process of building structures of prefabricated monolithic walls and precast floor slabs
DE102016006779A1 (en) * 2016-06-01 2017-12-07 Nikolaus Kirsch Reinforced foam boards (styrofoam) as slab formwork on the construction
IT201600099438A1 (en) * 2016-10-04 2018-04-04 Tekno Fabbrica S R L PANEL MADE FROM EXPANDED PLASTIC METERIAL FOR BUILDING SLAB CONSTRUCTION, SLAB AND CONSTRUCTION METHOD COMPRISING SUCH A PANEL

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4272230A (en) * 1975-09-05 1981-06-09 Solai Vignola Di Faviani Orlando Ec Societa Slip form for building components
FR2361512A1 (en) * 1976-08-12 1978-03-10 Joannes Andre PREFABRICATED CONSTRUCTION PANEL AND MANUFACTURING PROCESS
AU586425B2 (en) * 1985-05-17 1989-07-13 Radva Corporation Insulating building panel for column and beam structure
FR2662730B1 (en) * 1990-05-29 1992-09-25 Eurostyrene Sarl METHOD FOR MANUFACTURING SELF-FORMING AND INSULATING HOURDIS, DEVICE FOR CARRYING OUT SAID METHOD AND HOURDIS THUS OBTAINED.
IT1265542B1 (en) * 1993-10-05 1996-11-22 Ntc Srl PREFABRICATED ELEMENT FOR THE REALIZATION OF FLOORS OF BUILDINGS.
IT1284961B1 (en) * 1996-10-15 1998-05-28 Plastedil Sa SELF-SUPPORTING BUILDING ELEMENT IN EXPANDED PLASTIC MATERIAL IN PARTICULAR FOR THE CONSTRUCTION OF FLOORS AND WALLS OF BUILDINGS

Also Published As

Publication number Publication date
EP0987377B1 (en) 2005-08-03
ATE301218T1 (en) 2005-08-15
ITPD980220A1 (en) 2000-03-18
IT1302499B1 (en) 2000-09-05
EP0987377A2 (en) 2000-03-22
DE69926454T2 (en) 2006-06-08
EP0987377A3 (en) 2001-02-07
DE69926454D1 (en) 2005-09-08

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